设停车场是一个可以停放n辆汽车的狭长通道，且只有一个大门可以供车辆进出。车辆按到达停车场时间的早晚依次从停车场最里向大门口处停放（最先到达的第一辆车放在停车场的最里面）。-Parking lots can be a vehicle parked in the narrow channel n, and only one door can be used for vehicle access. Parking lot by the time the vehicle arrives sooner o